Bus or car window construction



Allg- 12, 1 941 s. E. BLEsslN l BUS OR CAR WINDOW CONSTRUCTION FiledSept. '7, 1939 2 Sheets-Sheet l ATTORNEY Aug. 12, 1941. s. E. BLEsslNBUS OR CAR WINDOW CONSTRUCTION 2 Sheets-Sheet 2 Filed sept. 7, 1939lNVENTORy BY y ATTORNEY Patented Aug. 12, 1941 2,252,547 i BUS R CARWINDOW CONSTRUCTION Siegfried E. Blessin, Short Hills, N. J., assignorto Transportation Sash Co. Inc., Topton, Pa., a corporation ofPennsylvania,

Application September 7, 1939, Serial No. 293,668

4 Claims. (Cl. ISS-73) .This invention relates to improvements in bus Iorcar Windows; .and more particularly to simplify the constructionandfacilitate the operation of Windows especially adapted for use onbuses', or Ythe like. Y

. Buses .are at present constructed of metal as far as possible withsubstantially rectangular openings for windows. The windows areaccurately `1"r -1anuiacturedinto substantially true rectangles; but itis diiiicult to construct and maintain the window opening a truerectangle e in the `metal wall of the bus. This is objectionable in`that the Window does not properly fit into the opening, and it is eithertoo loose causing'annoying rattling whenv the bus is in motion, or it istoo'tight, making it Idiiiicult-to raise or lower the window.

It is, therefore, an object of this invention to construct andfacilitate the `operation of windows by providing a movable `memberagainst which the side edges of the window bear, the moving of themember being resisted by springs of a peculiar construction providing auniform resisting force at all times. By means of this construction,rattling and binding of the Window is prevented, as the windowengagesthe member at'all times with the 4same 'force regardless of theaccuracy of the fit between the window opening and thevvindow.

A further object is to provide a window construction forv buses and thelike, which prevents the entranceof water to moving parts of the window,and thus prevents binding of such parts by corrosion resulting fromWater.

Another object is the provision of` a construction which. greatlydecreases the cost of manufacture of windows for cars or buses.

These and other advantageous objects which will later appear, areaccomplished by the simple and practical construction and arrangement ofparts hereinafter described and 4exhibited in the accompanying drawings,forming part hereof, and in which:

Fig. l is an elevational view of a Window embodying the invention,

Fig. 2 is a sectional view taken on line 2--2 of Fig. 1,

Fig. 3 is a sectional view taken on line 3 3 of Fig. 1,

Fig. 4 is a perspective View of a member used in the windowconstruction,

Fig. 5 is a perspective view of va member adapted to coact with themember shown in Fig. 4, and

Fig. 6 is a side View of a spring used in the device.

Referring to the drawings, in Fig. 1 there is shown awindow sash for labus or the like, having a glass l, which has its side edges and upperedge bound in glazing tape 2, and positioned in a channel metal strip 3.-The side walls of the channel met-al strip 3 are bent back uponthemselves to provide spaced walls 5 forming narrow channels in whichIare mounted strips of felt 6, which project beyond the bottom walls ofth channel strip I3.

The portion of the channel strip 3 embracing the upper edge of the glassI is not provided with a felt strip; but is covered by a suitable capk lin order to provide a finished appearance and `prevent the entrance offwater.

Y `The felt strips 6 bear against the bottom 8 of a Vchannel memberhaving side wallsB. Mounted upon vthe bottom wall `8 of the channelmember (SeeFigS. `l and 6') `are la plurality of spaced torsion springsI0 having legs VII which are xed to the -bottom wall `8 and legs I2which are slidable thereon, the inward movement of said legs I2- beinglimited by a stop I3 projecting from the bottom wall 8.` The springsengage wall I 4 of a substantially channel casting having yan outer wallI5 and a short longitudinal partition I6 spaced therefrom, one wall 9 of`the last mentioned channel member being positioned in the space betweenWall I5 and partition I6. The vva-ll I5 being on the outside of theWindow, is adapted to be covered with a sheet of suitable metal veneerI1 for ornamental purposes if so desired.

It will `be noted that the wall I5 extends over the wall 5 of thechannelstrip 3, and the arrangement labove described prevents water fromcoming in Contact with the springs Ill and other Darts of the device. Itwill be seen that in order for water to come into contact with springsI0 it is necessary for the water to pass -along the inner surface ofwall I5 and then back again between the partition I6 and wall 9 of thechannel member having the bottom 8.

The casting has lan inner wall I8 to which is attached la suitable guideplate I9 on the inside of the window. The casting I4 is secured to Ithewindow casing 2l) by meansl of screws or similar means and .awater-tight seal is provided by strips of felt 2l.

Springs I0 exert substantially the same force at all times. That is,when they are in the raised position, the force of each spring isapproximately ten pounds and when the spring is depressed it has beenfound that the force is practically the same. By using a spring of thistype, a uniform pressure upon the side edges of the window is assured atall times and it facilitates the raising and lowering of the same, andcompensates for any tendency towards binding. Heretofore, when springsof a different construction were used, the force exerted by the springvaried considerably and often caused binding of the window.

The channel strip 3 which preferably consists of one piece, can bereadily mounted on the top and side edges of the glass I and provides asimpler structure than heretofore has been the case with windows of thistype. The felt strips 6 are protected from dampness by the walls and thewall l5, so that they can slide freely at all times over the bottom wall8 of the channel member.

Punched from the wall 8 are a plurality of tabs 22 which provideopenings 23 to receive a latch for holding the window in various raisedpositions. The latch is operable by a handle 24 mounted upon the bottomrail 25 of the window cash.

From the above description it will be seen that there has been provideda` window construction which prevents binding at all times of the windowsash during the process of being raised or lowered. Binding is preventedby maintaining a uniform pressure upon the side edges of the window sashat all times, this uniform pressure being assured by the springs IIJwhich exert the same force regardless of theextent to which they may bedepressed.

The channel strip 3 can be manufactured at a very low cost and can bequickly mounted upon the edges ofthe windowY glass. The amount of feltnecessary isV reduced to a minimum by the structure herein described;and the felt is protected from dampness so that it will have no tendencyto have abinding effect as has heretofore beenthe case in windows usingother constructions with felt. The moving parts of the windowconstruction are protected from rain and water ilo by providing atortuous path for the water and Y,

1. In a window construction, a window sash, a channel member having abottom wall engaging said sash, a plurality of torsion springs mountedon the bottom wall of the channel member, each of said springs having afixed leg and a movable leg and an intermediate coil portion, and asecond channel member in which the rst channel member is slidablypositioned, said channel members opening towards each other, the coiledportions of said springs bearing against the bottom wall of the secondchannel member and exerting at all times substantially the same force.

2. In a window construction, a Window sash, a channel member having abottom wall engaging said sash, a plurality of torsion springs mountedon the bottom wall of the channel member, each of said springs having axed leg and a movable leg and an intermediate coil portion, and a secondchannel member in which the rst channel member is slidably positioned,said channel members opening towards each other, the coiled portions ofsaid springs bearing against the bottom wall of the second channelmember and exerting at all times substantially the same force, saidsecond channel member having a partition therein, the first channelmember having a side wall positioned in the space between said partitionand a wall of said second channel member.

3. In a window construction, a window sash, a channel member having abottom wall engaging the side edges of said sash, a second channelmember having a partition spaced from a side wall thereof, said channelmembers opening to wards each other, the first channel member having aWall thereof slidably positioned in the space between said partitionsand the side wall of the second channel member, and resilient meansmounted on the bottom of the first channel member and engaging thebottom of the second channel member at all times with substantially thesame force.

4. In a window construction, a window sash, a channel member having abottom wall engaging the side edges of said sash, a second channelmember having a partition spaced from a side Wall thereof, said channelmembers opening towards each other, the first channel member having awall thereof slidably positioned in the space between said partition andthe side wall of the second channel member, and resilient means mountedon the bottom of one of the channel members and engaging the bottom ofthe other channel member at all times with substantially the same force.

SIEGFRIED E. BLESSIN.

